10639146 has 48 divisors (see below), whose sum is σ = 25078464. Its totient is φ = 2947392.

The previous prime is 10639141. The next prime is 10639147. The reversal of 10639146 is 64193601.

It is a super-2 number, since 2×10639146² = 226382855218632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (10639141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77590 + ... + 77726.

It is an arithmetic number, because the mean of its divisors is an integer number (522468).

Almost surely, 2^10639146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10639146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12539232).

10639146 is an abundant number, since it is smaller than the sum of its proper divisors (14439318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10639146 is a wasteful number, since it uses less digits than its factorization.

10639146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 10639146 is about 3261.7703781842. The cubic root of 10639146 is about 219.9390051293.

The spelling of 10639146 in words is "ten million, six hundred thirty-nine thousand, one hundred forty-six".